@backtoTopPrefixCls: ym-back-top;

.@{backtoTopPrefixCls} {
  width: 40px;
  height: 40px;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  color: rgba(0, 0, 0, 88%);
  font-size: 14px;
  line-height: 1.5714;
  list-style: none;
  border: none;
  position: fixed;
  cursor: pointer;
  overflow: hidden;
  z-index: 99;
  display: block;
  justify-content: center;
  align-items: center;
  border-radius: 50%;
  right: 24px;
  bottom: 48px;
  box-shadow: 0 6px 16px 0 rgb(0 0 0 / 8%), 0 3px 6px -4px rgb(0 0 0 / 12%),
    0 9px 28px 8px rgb(0 0 0 / 5%);
  background-color: #fff;
  transition: background-color 0.3s;
}
